CN112711318A - Reset control circuit and method and terminal - Google Patents
Reset control circuit and method and terminal Download PDFInfo
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- CN112711318A CN112711318A CN202011569387.4A CN202011569387A CN112711318A CN 112711318 A CN112711318 A CN 112711318A CN 202011569387 A CN202011569387 A CN 202011569387A CN 112711318 A CN112711318 A CN 112711318A
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- 239000000047 product Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/24—Resetting means
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Abstract
The invention relates to the technical field of electronics, and discloses a reset control circuit, a reset control method and a terminal. The reset control circuit includes: the device comprises a first conductive contact, a second conductive contact, an analog switch, a battery and a functional module; the analog switch comprises an enabling pin, a power input pin and a power output pin; the enabling pin is electrically connected with the first conductive contact and the functional module, the power input pin is electrically connected with the battery, and the power output pin is electrically connected with the functional module; the second conductive contact is grounded; when the enable pin is identified to be at a high level, the analog switch is switched to a conducting state; when the identification enable pin is at a low level, the analog switch is switched to an off state. By applying the embodiment of the invention, when the system is halted, the first conductive contact is pulled to the low level and then to the high level, and the electric quantity of the battery is not required to be exhausted for a long time, so that the time length of the whole reset operation and the duration of the abnormal state of the terminal are shortened, and the use experience of a user is greatly improved.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a reset control circuit, a reset control method and a terminal.
Background
With the development of communication technology, the types of terminal devices are continuously enriched, and for example, the life of people is continuously enriched by terminal devices such as smart speakers, televisions, tablet computers, routers, smart watches, bracelets, earphones, televisions, and notebooks. Of course, the functions of these terminal devices are also evolving, for example, a mobile phone can be used to make a call, listen to music, watch videos, play games, etc., a bracelet can be used to record sports information, health conditions, etc., and a smart watch can be used to make a call, navigate, locate, etc.
Wherein, the bracelet is because its advantages such as small and exquisite, wear convenient, powerful, stand-by time are long and deepened in people's life rapidly. In the prior art, due to the limitation of cost consideration and an external interface, the bracelet cannot use an external reset key, and cannot realize the function of resetting a long-key trigger system on a similar mobile phone, so that the bracelet can be recharged for resetting after waiting for the automatic light electric quantity of the battery when the system crashes. According to the reset method, too much time needs to be wasted for waiting, and the bracelet cannot work and be used during waiting, so that the use experience of a user is greatly influenced.
Disclosure of Invention
The invention aims to provide a reset control circuit, a reset control method and a reset control terminal, which solve the defect that the existing reset method needs to consume long waiting time.
In order to achieve the purpose, the invention adopts the following technical scheme:
a reset control circuit, comprising: the device comprises a first conductive contact, a second conductive contact, an analog switch, a battery and a functional module;
the analog switch comprises an enabling pin, a power input pin and a power output pin; the enabling pin is electrically connected with the first conductive contact and the functional module, the power input pin is electrically connected with the battery, and the power output pin is electrically connected with the functional module; the second conductive contact is grounded;
when the first conductive contact and the second conductive contact are conducted, the analog switch disconnects a circuit between the functional module and the battery, and the disconnection of the circuit between the functional module and the battery is used for resetting the control circuit.
Optionally, the first conductive contact is a positive charging contact of a charging connector, and the second conductive contact is a negative charging contact of the charging connector.
Optionally, the first conductive contact is connected to an enable pin of the analog switch through a first anti-interference circuit, and the functional module is connected to the enable pin of the analog switch through a second anti-interference circuit.
Optionally, the first anti-jamming circuit includes a diode, and the second anti-jamming circuit includes a diode.
A reset control method of the reset control circuit as described in any one of the above, comprising:
firstly, the first conductive contact is controlled to be grounded, so that the enable pin is in a low-level state, and the analog switch is switched to a disconnected state;
and then the first conductive contact is controlled to cancel grounding, so that the pin is enabled to be in a high level state, and the analog switch is switched to be in a conducting state.
Optionally, the method for controlling the first conductive contact to be grounded comprises: electrically connecting the first conductive contact with the second conductive contact.
Optionally, in the reset control method, a wire or a metal product is used to electrically connect the first conductive contact and the second conductive contact.
A terminal comprising a reset control circuit as claimed in any one of the preceding claims.
Optionally, the terminal includes a charging connector, the charging connector includes a positive charging contact and a negative charging contact, the positive charging contact is used as the first conductive contact, and the negative charging contact is used as the second conductive contact.
Optionally, the charging connector is a spring-type probe.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a simple, quick and low-cost reset control scheme, when a system is halted, the reset can be completed only by pulling the first conductive contact to the low level and then to the high level, the battery power is not required to be exhausted for a long time, the whole reset operation time length and the duration time of the abnormal state of the terminal are shortened, and the use experience of a user is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a reset control circuit according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the embodiments of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any creative efforts shall fall within the protection scope of the embodiments of the present invention.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of embodiments of the present invention and the above-described drawings, are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The basic principle of hardware reset is that the functional module is connected with the battery after being completely cut off, and the system can be restarted and recovered to be normal. Accordingly, embodiments of the present invention provide a reset control circuit, which first cuts off the connection between the functional module and the battery and then connects the functional module and the battery when the reset is required.
Referring to fig. 1, a reset control circuit according to an embodiment of the present invention includes: the device comprises a first conductive contact, a second conductive contact, an analog switch, a battery and a functional module.
The analog switch comprises an enabling pin, a power input pin and a power output pin; the power supply comprises a power supply input pin, a power supply output pin, a first conductive contact, a functional module, a power supply output pin and a power supply output pin, wherein the power supply input pin is electrically connected with the power supply output pin; the second conductive contact is grounded.
And under the condition that the first conductive contact is conducted with the second conductive contact, the analog switch disconnects the circuit between the functional module and the battery, and the circuit disconnection between the functional module and the battery is used for resetting the control circuit.
It should be noted that the functional module is any module that needs power consumption and is included in the terminal, for example, the MCU, and when the reset control circuit of this embodiment is applied to different terminals, the related functional modules may be different, and the present invention is not limited thereto.
And the enabling pin is used as a control signal input end of the analog switch and is used for controlling the on-off state of the analog switch. The analog switch is a kind of interface which can make analog signal pass or block, and is mainly used for analog signal and digital control. In the embodiment of the invention, the analog switch is connected between the battery and the functional module; when the high level input by the enable pin is identified, the analog switch is switched to a conducting state, and the battery is communicated with the functional module, so that the battery can supply power to the functional module, and normal working operation is ensured; when the enable pin is identified to input a low level, the analog switch is switched to a disconnected state, and at the moment, hardware is powered down.
Whether the enable pin is in a high state or a low state depends on the state of the first conductive contact. The battery is always communicated with the functional module because the analog switch is switched on in the normal starting working process, and meanwhile, the functional module is communicated with the enabling pin of the analog switch, so that the functional module can input a high level signal to the enabling pin, and at the moment, the enabling pin is always in a high level state as long as the first conductive contact is suspended or the high level is input; at this time, if the first conductive contact inputs a low level, the enable pin is converted into a low level state, the analog switch is disconnected, the battery and the functional module cannot be communicated, and then the functional module cannot input a high level to the enable pin of the analog switch.
Therefore, based on the reset control circuit, the reset control can be realized as long as the level state of the first conductive contact is controlled: when the reset is needed, the first conductive contact is controlled to output a low level, and then the first conductive contact is controlled to output a high level or is suspended.
In practical applications, in order to save cost and reduce assembly space, an existing charging connector of the terminal can be utilized, and a positive charging contact of the charging connector is used as the first conductive contact, and a negative charging contact of the charging connector is used as the second conductive contact. Thus, the embodiment of the invention can perform function multiplexing on the charging connector, and not only can use the charging connector to complete the conventional external charging operation, but also can use the charging connector to complete the reset control operation in a non-external charging state.
In order to avoid mutual interference of two paths of signals, in the embodiment of the invention, the first conductive contact is connected with the enabling pin of the analog switch through the first anti-interference circuit, and the functional module is connected with the enabling pin of the analog switch through the second anti-interference circuit. The first anti-jamming circuit and the second anti-jamming circuit may be implemented in various conventional manners, such as diodes, and the specific type is not limited.
Based on the reset control circuit, an embodiment of the present invention further provides a reset control method, which specifically includes:
firstly, controlling the first conductive contact to be grounded so that the enable pin forms a low level state, and switching the analog switch to a disconnected state; at the moment, the battery is disconnected with the functional module, so that hardware power failure is realized;
then, the first conductive contact is controlled to cancel grounding, for example, the first conductive contact is suspended to enable the enabling pin to form a high level state, and the analog switch is switched to a conducting state; at the moment, the battery is communicated with the functional module, and hardware reset is realized.
Illustratively, the method for controlling the grounding of the first conductive contact is as follows: electrically connecting the first conductive contact with a grounded second conductive contact; alternatively, the first conductive contact is electrically connected to other units that are grounded.
In practice, a wire or a metal product (e.g., tweezers) may be used to electrically connect the first conductive contact with the second conductive contact.
It can be understood that the reset control circuit is suitable for an end product, and therefore, the embodiment of the present invention further provides a terminal including the reset control circuit as described above.
In practical production, the first conductive contact, the second conductive contact and the analog switch can be additionally arranged on the terminal product, and the connection relation between the units and the battery and the functional module in the terminal product, which are shown in fig. 1, is established, so that simple reset control operation can be realized.
Certainly, when the terminal comprises the charging connector, the charging connector can be reused, only the analog switch is additionally arranged in the terminal, the positive charging contact of the charging connector is used as the first conductive contact, and the negative charging contact of the charging connector is used as the second conductive contact, so that the realization cost can be saved, the assembly space can be saved, and the miniaturization development requirement of the terminal is met.
In fact, the terminal to which the invention relates may be, for example: various devices with reset control requirements, such as a tablet computer, a mobile phone, an intelligent watch, a Personal Digital Assistant (PDA), a vehicle-mounted computer, a desktop computer, a notebook computer, an intelligent television, an intelligent bracelet and the like.
Taking a smart bracelet as an example, a charging connector such as a Pogo Pin (spring-loaded probe) is usually configured on an existing smart bracelet, and the Pogo Pin includes a positive charging contact and a negative charging contact. At this time, when the reset control circuit provided by the embodiment of the present invention is applied, the positive charging contact may be used as the first conductive contact, the negative charging contact may be used as the second conductive contact, and the circuit connection may be established according to the structure shown in fig. 1.
Under normal conditions, when the intelligent bracelet is connected with the charger, the level of the positive charging contact is pulled high, the analog switch is turned on immediately, the battery can supply power to the functional module at the rear end, and the system is started normally. After the system is normally started, because the analog switch is turned on, the functional module can always input a high level signal to the enabling pin, and at the moment, even if the charger is pulled out, the enabling pin keeps a high level all the time, so the analog switch is also in a conducting state, the system is not influenced and is only not in a charging state.
When the system of intelligence bracelet crashed, need not to wait to battery power consumption, only need with wire or tweezers with two exposed charging contact short circuits of intelligence bracelet, the messenger pin that is equivalent to analog switch promptly is drawn down, analog switch's input/output does not switch on, has not had battery powered this moment, and the normal power supply of system has also been out, and then has realized that the hardware falls the electricity. When the user charges the intelligent bracelet again, analog switch's enable pin is pulled high to the high level again, and analog switch's input/output switches on once more, and the system resumes the power supply, just also can normally start, and the user can continue normal use.
In summary, the embodiment of the invention realizes simple, quick and low-cost reset control, reduces the power consumption of the whole machine, and can be widely applied to various terminal products.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A reset control circuit, comprising: the device comprises a first conductive contact, a second conductive contact, an analog switch, a battery and a functional module, wherein the analog switch comprises an enable pin, a power input pin and a power output pin, the enable pin is electrically connected with the first conductive contact and the functional module, the power input pin is electrically connected with the battery, the power output pin is electrically connected with the functional module, and the second conductive contact is grounded;
when the first conductive contact and the second conductive contact are conducted, the analog switch disconnects a circuit between the functional module and the battery, and the disconnection of the circuit between the functional module and the battery is used for resetting the control circuit.
2. The reset control circuit of claim 1, wherein the first conductive contact is a positive charging contact of a charging connector and the second conductive contact is a negative charging contact of the charging connector.
3. The reset control circuit of claim 1, wherein the first conductive contact is connected to the enable pin of the analog switch via a first anti-jamming circuit, and the functional module is connected to the enable pin of the analog switch via a second anti-jamming circuit.
4. The reset control circuit of claim 3, wherein the first anti-jamming circuit comprises a diode and the second anti-jamming circuit comprises a diode.
5. A reset control method of the reset control circuit according to any one of claims 1 to 4, comprising:
firstly, the first conductive contact is controlled to be grounded, so that the enable pin is in a low level state, and the analog switch is switched to a disconnected state;
and then the first conductive contact is controlled to cancel grounding, so that the enabling pin is in a high level state, and the analog switch is switched to a conducting state.
6. The reset control method of claim 5, wherein the method of controlling the first conductive contact to be grounded is: electrically connecting the first conductive contact with the second conductive contact.
7. The reset control method according to claim 6, wherein a wire or a metal product is used to electrically connect the first conductive contact and the second conductive contact.
8. A terminal, characterized in that it comprises a reset control circuit according to any one of claims 1 to 4.
9. A terminal according to claim 8, characterized in that the terminal comprises a charging connector comprising a positive charging contact as the first conductive contact and a negative charging contact as the second conductive contact.
10. A terminal according to claim 8 or 9, characterised in that the charging connector is a spring loaded probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569387.4A CN112711318A (en) | 2020-12-26 | 2020-12-26 | Reset control circuit and method and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011569387.4A CN112711318A (en) | 2020-12-26 | 2020-12-26 | Reset control circuit and method and terminal |
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| Publication Number | Publication Date |
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| CN112711318A true CN112711318A (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011569387.4A Pending CN112711318A (en) | 2020-12-26 | 2020-12-26 | Reset control circuit and method and terminal |
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